Autowiring fails: Not an managed Type

Question 1

Autowiring fails: Not an managed Type

java spring spring-mvc spring-data-jpa hessian

alfred_m · Dec 28, 2012 · Viewed 177.1k times · Source

Answer

Answer

I got an very helpful advice from Oliver Gierke:

The last exception you get actually indicates a problem with your JPA setup. "Not a managed bean" means not a type the JPA provider is aware of. If you're setting up a Spring based JPA application I'd recommend to configure the "packagesToScan" property on the LocalContainerEntityManagerFactory you have configured to the package that contains your JPA entities. Alternatively you can list all your entity classes in persistence.xml, but that's usually more cumbersome.

The former error you got (NoClassDefFound) indicates the class mentioned is not available on the projects classpath. So you might wanna check the inter module dependencies you have. As the two relevant classes seem to be located in the same module it might also just be an issue with an incomplete deployment to Tomcat (WTP is kind of bitchy sometimes). I'd definitely recommend to run a test for verification (as you already did). As this seems to lead you to a different exception, I guess it's really some Eclipse glitch

Thanks!

Question 2

I have a big problem in my diploma project and would be very glad if you guys could help me! I made a Maven Multi Module Project and have 3 "Core-projects"

NaviClean: (Parent)
NaviCleanDomain: contains the domain model with all my entities and an interface MeinRemoteDienst which is needed by NaviCleanServer and NaviCleanCleint for the Hessianprotocol
NaviCleanClient: conatins the GUI and a Hessian connection to NaviCleanServer
NaviCleanServer: Here are my repositories, my connection to the DB and the Implementation of the interface einRemoteDienst NaviCleanServer & NaviCleanClient have NaviCleanDomain in Maven as Dependency.

Now every time I try to start the Server on my Tomcat I get the following error:

ERROR: org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'transaktionsRepository': 
Injection of persistence dependencies failed; 
nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: 
Error loading class [at.naviclean.service.impl.MeinRemoteDienstImpl] for bean with name 'meinRemoteDienstImpl' defined in file [C:\Users\Fredy\Documents\workspace-sts-3.1.0.RELEASE\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\NaviCleanServer\WEB-INF\classes\at\naviclean\service\impl\MeinRemoteDienstImpl.class]: 
problem with class file or dependent class; 
nested exception is java.lang.NoClassDefFoundError: at/naviclean/service/MeinRemoteDienst
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:342)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
    ……………….

ModelBase:

package at.naviclean.domain;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.Version;

@SuppressWarnings("serial")
@MappedSuperclass
public class ModelBase implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "id")
    private Long id;

    @Version
    @Column(name = "ts")
    private Date timestamp;

    public Long getId() {
        return id;
    }

    public Date getTimestamp() {
        return timestamp;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public void setTimestamp(Date timestamp) {
        this.timestamp = timestamp;
    }

}

Kassa:

package at.naviclean.domain;

import javax.persistence.Column;
import javax.persistence.Entity;

@SuppressWarnings("serial")
@Entity
public class Kassa extends ModelBase {

    @Column(name = "name", unique = true)
    private String name;

    @Column(name = "geld")
    private int geld;

    public Kassa(String name, int geld) {
        this.name = name;
        this.geld = geld;
    }

    public Kassa() {
    }

    public String getName() {
        return name;
    }

    public int getGeld() {
        return geld;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setGeld(int geld) {
        this.geld = geld;
    }

}

MeinRemoteDienst:

package at.naviclean.service;

import at.naviclean.domain.Kassa;

public interface MeinRemoteDienst {

    int getKassaCount(int plus);

    String getNameFromKassa(int id);

    Kassa findById(int id);
}

BaseRepository

package at.naviclean.repositories;

import org.springframework.data.jpa.repository.JpaRepository;

import at.naviclean.domain.ModelBase;

public interface BaseRepository<T extends ModelBase> extends
        JpaRepository<T, Long> {
    T findById(long id);

}

KassaRepository:

package at.naviclean.repositories;

import java.util.List;

import org.springframework.data.jpa.repository.Query;

import at.naviclean.domain.Kassa;

public interface KassaRepository extends BaseRepository<Kassa> {
    List<Kassa> findByGeld(int geld);

    Kassa findByName(String name);

    @Query("select k from Kassa k where k.geld = ?1")
    Kassa findByGeld1(int geld);
}

MeinRemoteDienstImpl:

package at.naviclean.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import at.naviclean.domain.Kassa;
import at.naviclean.repositories.KassaRepository;
import at.naviclean.service.MeinRemoteDienst;

@Service
public class MeinRemoteDienstImpl implements MeinRemoteDienst {

    @Autowired(required = true)
    public KassaRepository kassaR;

    public int getKassaCount(int plus) {
        return 2;
    }


    public String getNameFromKassa(int id) {
        return kassaR.findById(id + 0l).getName();
    }

    @Override
    public Kassa findById(int id) {
        return = kassaR.findById(id + 0l);
    }

}

application-context.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:repository="http://www.springframework.org/schema/data/repository"
    xsi:schemaLocation="http://www.springframework.org/schema/data/repository http://www.springframework.org/schema/data/repository/spring-repository.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">


    <import resource="infrastructures.xml" />

    <jpa:repositories base-package="at.naviclean.repositories">
        <repository:exclude-filter type="regex"
            expression="at.naviclean.repositories.BaseRepository" />
    </jpa:repositories>

    <context:component-scan base-package="at.naviclean.service.impl" />

</beans>

infrastructures.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:jdbc="http://www.springframework.org/schema/jdbc"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
                http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">



        <bean id="entityManagerFactory"
                class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
                <property name="dataSource" ref="dataSource" />
                <property name="jpaVendorAdapter">
                        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                                <property name="showSql" value="true" />
                                <property name="generateDdl" value="true" />
                                <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
                        </bean>
                </property>
        </bean>

        <bean id="dataSource"
                class="org.springframework.jdbc.datasource.DriverManagerDataSource">
                <property name="driverClassName" value="com.mysql.jdbc.Driver" />
                <property name="url" value="jdbc:mysql://localhost/kassatest" />
                <property name="username" value="root" />
                <property name="password" value="" />
        </bean>

        <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
                <property name="entityManagerFactory" ref="entityManagerFactory" />
        </bean>


        <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />

</beans>

servlet-context.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:c="http://www.springframework.org/schema/c"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">



<import resource="../root-context.xml" />
    <bean id="idMeinRemoteDienst" class="at.naviclean.service.impl.MeinRemoteDienstImpl" />
    <bean name="/MeinRemoteDienstHessian"
        class="org.springframework.remoting.caucho.HessianServiceExporter"
        p:serviceInterface="at.naviclean.service.MeinRemoteDienst"
        p:service-ref="idMeinRemoteDienst" />

</beans>

root-context.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <import resource="classpath:META-INF/spring/application-context.xml" />

</beans>

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <!-- The definition of the Root Spring Container shared by all Servlets 
        and Filters -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
    </context-param>

    <!-- Creates the Spring Container shared by all Servlets and Filters -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


    <servlet>
        <servlet-name>/MeinRemoteDienstHessian</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>/MeinRemoteDienstHessian</servlet-name>
        <url-pattern>/remoting/*</url-pattern>
    </servlet-mapping>

</web-app>

Here is what I already tried: 1. I wrote this test which "went red":

Autowiring fails: Not an managed Type

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